The Lost Expedition (Poptropica, Bk. 2)

Welcome to an uncharted group of islands known as Poptropica, where Oliver, Mya, and Jorge set sail for new sights, mayhem, and adventure. There's just one problem: none of the trio can figure out how their confounding map works, and they soon find themselves lost in a world they know very little about. To make matters worse, the nefarious Octavian is hot on their trail - but this time, it seems he isn't the only one who's after them.

Will Oliver, Mya, and Jorge be able to once again outfox Octavian? Just who are these people who want to expel them from Poptropica, anyway? The mystery unfolds in The Lost Expedition!